I am perfectly safe. This guy has no way of knowing where I live and I have very strong self-preservation instincts. No worries. I'm going to ask the Japanese people who I work with tomorrow about what I should do about this situation. No worries. Just having men send me pictures of their penis' is rather...weird. Now, I'm going to bed and going to try to forget about this until tomorrow when I can do something about it that will be something that this guy will understand since it'll be the Japanese thing to do.
Good night to all.
...and my door is locked. And "bolted," as is per normal for me.